Question

explain elastic collision

Answer 1

An elastic collision is a situation where multiple objects collide and the total kinetic energy of the system is conserved, in contrast to an inelastic collision, where kinetic energy is lost during the collision. All types of collision obey the law of conservation of momentum. ... In the real world, most collisions result in loss of kinetic energy in the form of heat and sound, so it's rare to get physical collisions that are truly elastic.


When a ball at a billiard table hits another ball, it is an example of elastic collision. Similarly, when you throw a ball on the ground and it bounces back to your hand, there is no net change in the kinetic energy and hence, it is an elastic collision.

Answer 2

An elastic collision is a collision in which there is no net loss in kinetic energy in the system as a result of the collision. Both momentum and kinetic energy are conserved quantities in elastic collisions.